This page explains how Junduo (Jason) Zhao (USATT# 8985)'s rating went from 2068 to 2066 at the November Open held on - 16 Nov 2013. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.